Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of I-680 N (Martinez). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 8, 2026 at 3:39 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 8, 8:39 AM

Last Updated

5 months, 2 weeks ago

May 8, 8:45 AM

Resolved

May 8, 2:45 PM

Coordinates

37.9948, -122.0695

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of I-680 N (Martinez). Lane affected. Expect delays. May 8, 8:45 AM

Source: 511_sfbay · ID 511.org/1491780 First seen May 8, 2026 8:45 AM